Palo Alto, CA

12:08 PM PST on January 17, 2018 (GMT -0800)
Palo Alto Of Santa Clara County

Weather History for KPAO - December, 2011

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Friday, December 9, 2011

  Actual Average Record
Temperature  
Mean Temperature 46 °F -  
Max Temperature 59 °F 59 °F 71 °F (1975)
Min Temperature 33 °F 39 °F 23 °F (1972)
Degree Days  
Heating Degree Days 19    
Moisture  
Dew Point 40 °F    
Average Humidity 74    
Maximum Humidity 93    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.18 in    
Wind  
Wind Speed 5 mph (NNW)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 8 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 09, 2011 Rise Set
Actual Time 7:11 AM PST 4:50 PM PST
Civil Twilight 6:42 AM PST 5:19 PM PST
Nautical Twilight 6:09 AM PST 5:52 PM PST
Astronomical Twilight 5:37 AM PST 6:23 PM PST
Moon 4:18 PM PST (12/9) 6:23 AM PST (12/9)
Length of Visible Light 10h 37m
Length of Day
9h 39m
Waxing Gibbous, 99% of the Moon is Illuminated
Dec 9
Waxing Gibbous
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
7:47 AM 33.8 °F 28.6 °F 32.0 °F 93% 30.21 in 9.0 mi Variable 5.8 mph - N/A   Clear
8:47 AM 42.8 °F 40.1 °F 37.4 °F 81% 30.22 in 10.0 mi Variable 4.6 mph - N/A   Clear
9:47 AM 48.2 °F - 41.0 °F 76% 30.23 in 10.0 mi Variable 4.6 mph - N/A   Clear
10:47 AM 51.8 °F - 42.8 °F 71% 30.22 in 8.0 mi Variable 4.6 mph - N/A   Clear
11:47 AM 53.6 °F - 46.4 °F 77% 30.20 in 8.0 mi Variable 5.8 mph - N/A   Clear
12:47 PM 55.4 °F - 37.4 °F 51% 30.17 in 7.0 mi Variable 5.8 mph - N/A   Clear
1:47 PM 55.4 °F - 42.8 °F 63% 30.16 in 7.0 mi North 6.9 mph - N/A   Clear
2:47 PM 59.0 °F - 44.6 °F 59% 30.14 in 6.0 mi North 6.9 mph - N/A   Haze
3:47 PM 59.0 °F - 41.0 °F 51% 30.14 in 7.0 mi NNW 6.9 mph - N/A   Clear
4:47 PM 51.8 °F - 44.6 °F 76% 30.15 in 6.0 mi NNW 6.9 mph - N/A   Haze
5:47 PM 46.4 °F - 41.0 °F 81% 30.15 in 7.0 mi Calm Calm - N/A   Clear
6:47 PM 44.6 °F - 41.0 °F 87% 30.16 in 7.0 mi Calm Calm - N/A   Clear
7:47 PM 41.0 °F - 37.4 °F 87% 30.16 in 7.0 mi Calm Calm - N/A   Clear
8:47 PM 41.0 °F 38.0 °F 37.4 °F 87% 30.16 in 8.0 mi Variable 4.6 mph - N/A   Clear